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Low-profile holographic imaging antenna based on Fabry-Perot resonant cavity structure

A Perot resonant cavity and holographic imaging technology, applied in antennas, leaky waveguide antennas, antenna grounding devices, etc., can solve the problems of lack of theory and methods in two-dimensional functional design, and achieve flexible design, high imaging efficiency, and simple design. Effect

Active Publication Date: 2020-02-18
SOUTHEAST UNIV
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

But so far, the antenna design based on Fabry-Perot cavity is mainly limited to one-dimensional application scenarios, and the lack of simple theories and methods for two-dimensional functional design is an urgent problem to be solved.

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  • Low-profile holographic imaging antenna based on Fabry-Perot resonant cavity structure
  • Low-profile holographic imaging antenna based on Fabry-Perot resonant cavity structure
  • Low-profile holographic imaging antenna based on Fabry-Perot resonant cavity structure

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Embodiment Construction

[0028] Below in conjunction with accompanying drawing and specific embodiment, further illustrate the present invention, should be understood that these examples are only for illustrating the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various aspects of the present invention All modifications of the valence form fall within the scope defined by the appended claims of the present application.

[0029] The present invention, which is applied to the microwave segment, provides a Fabry-Perot resonator type low-profile antenna that can realize holographic imaging, mainly including two three-layer printed circuit boards, which can be divided into feed antenna, artificial magnetic There are three parts of the conductor and the coding part of the reflection unit, and the two printed circuit boards should maintain an air distance of about 1 / 4 wavelength.

[0030] T...

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Abstract

The invention discloses a low-profile holographic imaging antenna based on a Fabry-Perot resonant cavity structure. The antenna is based on a Fabry-Perot resonant cavity structure, operates in a leakywave mode, mainly includes a feed source antenna, an artificial magnetic conductor and an encoding part reflective surface. The transmitting phase of the encoding part reflective surface is arrangedcorrespondingly by a phase retrieval algorithm, such that the holographic imaging can be performed at a corresponding position in the near field. Compared with the prior art, the low-profile holographic imaging antenna has a low profile, is easy to design and machine, can be used to realize a low-profile two-dimensional beam deflection and multi-beam outgoing antenna, and can be used to achieve low-profile beam scanning and novel millimeter-wave wireless communication systems in cooperation with hardware, such as an FPGA and the like.

Description

technical field [0001] The invention relates to a low-profile holographic imaging antenna based on a Fabry-Perot resonant cavity structure, belonging to the field of antennas and new artificial electromagnetic materials. Background technique [0002] New artificial electromagnetic materials, or electromagnetic metamaterials, are an emerging technology that changes the electromagnetic properties and further realizes the regulation of electromagnetic waves by periodically arranging subunit structures. It has changed people's traditional understanding of electromagnetic waves. Now, as a two-dimensional structure of electromagnetic metamaterials, metasurfaces are widely used because of their advantages such as easy processing and low profile. With the introduction of the generalized Snell's law, it becomes more practical to use phase discontinuity to control the beam arbitrarily. In this case, it brings new methods and ideas to the design of microwave devices. [0003] The Fabr...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q1/48H01Q1/50H01Q13/20H01Q15/14H01Q19/185
CPCH01Q1/38H01Q1/48H01Q1/50H01Q13/20H01Q15/14H01Q19/185
Inventor 崔铁军李赫李允博申佳琳
Owner SOUTHEAST UNIV
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